Abstract
According to the appearance of salt damage occurred in concrete structures, many investigation data on chloride contents in the concrete have been reported and accumulated. They are very important but are thought to be far from the effective use. In this research, data of the chloride diffusion into concrete which were investigated and reported for the past 28 years in Japan were arranged as a database. And, on the base of the database, diffusion coefficient of chloride and chloride concentration on concrete surface were evaluated quantitatively with influence of some factors to them, such as water cement ratio, the kinds of cement, unit weight of cement, construction years of structure and investigated objects. Finally, it was made clear that the database constructed in this study were quite useful for the chloride diffusion process into concrete.
